This is a little tricky to assemble, lots of little bolts and nuts.I discovered that you don’t need a wrench on the nut, it grips the plastic firmly once snug. Be sure to assemble from one side of the doors, the whole way around. I went both ways from the door assembly and had a very hard time reaching through the tumbler to install the last panel!! This tumbles fairly easily with a heavy load. The divider is a little loose, but that doesn’t seem to be a problem while it’s in use. It feels like it will last quite a while, only time will tell. Haven’t gotten my first batch of compost out yet.